debugger.h

Go to the documentation of this file.

#pragma once
/*
 * (c) 2008-2011 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
 *               Alexander Warg <warg@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * This file is part of TUD:OS and distributed under the terms of the
 * GNU General Public License 2.
 * Please see the COPYING-GPL-2 file for details.
 *
 * As a special exception, you may use this file as part of a free software
 * library without restriction.  Specifically, if other files instantiate
 * templates or use macros or inline functions from this file, or you compile
 * this file and link it with other files to produce an executable, this
 * file does not by itself cause the resulting executable to be covered by
 * the GNU General Public License.  This exception does not however
 * invalidate any other reasons why the executable file might be covered by
 * the GNU General Public License.
 */
 
#include <l4/sys/compiler.h>
#include <l4/sys/utcb.h>
#include <l4/sys/ipc.h>
 
L4_INLINE l4_msgtag_t
l4_debugger_set_object_name(l4_cap_idx_t cap, const char *name) L4_NOTHROW;
 
L4_INLINE l4_msgtag_t
l4_debugger_set_object_name_u(l4_cap_idx_t cap, const char *name, l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE l4_msgtag_t
l4_debugger_get_object_name(l4_cap_idx_t cap, unsigned id,
                            char *name, unsigned size) L4_NOTHROW;
 
L4_INLINE l4_msgtag_t
l4_debugger_get_object_name_u(l4_cap_idx_t cap, unsigned id,
                              char *name, unsigned size,
                              l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE unsigned long
l4_debugger_global_id(l4_cap_idx_t cap) L4_NOTHROW;
 
L4_INLINE unsigned long
l4_debugger_global_id_u(l4_cap_idx_t cap, l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE unsigned long
l4_debugger_kobj_to_id(l4_cap_idx_t cap, l4_addr_t kobjp) L4_NOTHROW;
 
L4_INLINE unsigned long
l4_debugger_kobj_to_id_u(l4_cap_idx_t cap, l4_addr_t kobjp, l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE long
l4_debugger_query_log_typeid(l4_cap_idx_t cap, const char *name,
                             unsigned idx) L4_NOTHROW;
 
L4_INLINE long
l4_debugger_query_log_typeid_u(l4_cap_idx_t cap, const char *name,
                               unsigned idx, l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE long
l4_debugger_query_log_name(l4_cap_idx_t cap, unsigned idx,
                           char *name, unsigned namelen,
                           char *shortname, unsigned shortnamelen) L4_NOTHROW;
 
L4_INLINE long
l4_debugger_query_log_name_u(l4_cap_idx_t cap, unsigned idx,
                             char *name, unsigned namelen,
                             char *shortname, unsigned shortnamelen,
                             l4_utcb_t *utcb) L4_NOTHROW;
 
L4_INLINE l4_msgtag_t
l4_debugger_switch_log(l4_cap_idx_t cap, const char *name,
                       int on_off) L4_NOTHROW;
 
L4_INLINE l4_msgtag_t
l4_debugger_switch_log_u(l4_cap_idx_t cap, const char *name, int on_off,
                         l4_utcb_t *utcb) L4_NOTHROW;
 
enum
{
  L4_DEBUGGER_NAME_SET_OP         = 0UL,
  L4_DEBUGGER_GLOBAL_ID_OP        = 1UL,
  L4_DEBUGGER_KOBJ_TO_ID_OP       = 2UL,
  L4_DEBUGGER_QUERY_LOG_TYPEID_OP = 3UL,
  L4_DEBUGGER_SWITCH_LOG_OP       = 4UL,
  L4_DEBUGGER_NAME_GET_OP         = 5UL,
  L4_DEBUGGER_QUERY_LOG_NAME_OP   = 6UL,
};
 
enum
{
  L4_DEBUGGER_SWITCH_LOG_ON  = 1,
  L4_DEBUGGER_SWITCH_LOG_OFF = 0,
};
 
/* IMPLEMENTATION -----------------------------------------------------------*/
 
#include <l4/sys/kernel_object.h>
 
L4_INLINE unsigned
__strcpy_maxlen(char *dst, char const *src, unsigned maxlen)
{
  unsigned i;
  if (!maxlen)
    return 0;
 
  for (i = 0; i < maxlen - 1 && src[i]; ++i)
    dst[i] = src[i];
  dst[i] = '\0';
 
  return i + 1;
}
 
L4_INLINE l4_msgtag_t
l4_debugger_set_object_name_u(l4_cap_idx_t cap,
                              const char *name, l4_utcb_t *utcb) L4_NOTHROW
{
  unsigned i;
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_NAME_SET_OP;
  i = __strcpy_maxlen((char *)&l4_utcb_mr_u(utcb)->mr[1], name,
                      (L4_UTCB_GENERIC_DATA_SIZE - 2) * sizeof(l4_umword_t));
  i = l4_bytes_to_mwords(i);
  return l4_invoke_debugger(cap, l4_msgtag(0, 1 + i, 0, 0), utcb);
}
 
L4_INLINE unsigned long
l4_debugger_global_id_u(l4_cap_idx_t cap, l4_utcb_t *utcb) L4_NOTHROW
{
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_GLOBAL_ID_OP;
  if (l4_error_u(l4_invoke_debugger(cap, l4_msgtag(0, 1, 0, 0), utcb), utcb))
    return ~0UL;
  return l4_utcb_mr_u(utcb)->mr[0];
}
 
L4_INLINE unsigned long
l4_debugger_kobj_to_id_u(l4_cap_idx_t cap, l4_addr_t kobjp, l4_utcb_t *utcb) L4_NOTHROW
{
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_KOBJ_TO_ID_OP;
  l4_utcb_mr_u(utcb)->mr[1] = kobjp;
  if (l4_error_u(l4_invoke_debugger(cap, l4_msgtag(0, 2, 0, 0), utcb), utcb))
    return ~0UL;
  return l4_utcb_mr_u(utcb)->mr[0];
}
 
L4_INLINE long
l4_debugger_query_log_typeid_u(l4_cap_idx_t cap, const char *name,
                               unsigned idx,
                               l4_utcb_t *utcb) L4_NOTHROW
{
  unsigned i;
  long e;
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_QUERY_LOG_TYPEID_OP;
  l4_utcb_mr_u(utcb)->mr[1] = idx;
  i = __strcpy_maxlen((char *)&l4_utcb_mr_u(utcb)->mr[2], name, 32);
  i = l4_bytes_to_mwords(i);
  e = l4_error_u(l4_invoke_debugger(cap, l4_msgtag(0, 2 + i, 0, 0), utcb), utcb);
  if (e < 0)
    return e;
  return l4_utcb_mr_u(utcb)->mr[0];
}
 
L4_INLINE long
l4_debugger_query_log_name_u(l4_cap_idx_t cap, unsigned idx,
                             char *name, unsigned namelen,
                             char *shortname, unsigned shortnamelen,
                             l4_utcb_t *utcb) L4_NOTHROW
{
  long e;
  char const *n;
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_QUERY_LOG_NAME_OP;
  l4_utcb_mr_u(utcb)->mr[1] = idx;
  e = l4_error_u(l4_invoke_debugger(cap, l4_msgtag(0, 2, 0, 0), utcb), utcb);
  if (e < 0)
    return e;
  n = (char const *)&l4_utcb_mr_u(utcb)->mr[0];
  __strcpy_maxlen(name, n, namelen);
  __strcpy_maxlen(shortname, n + __builtin_strlen(n) + 1, shortnamelen);
  return 0;
}
 
 
L4_INLINE l4_msgtag_t
l4_debugger_switch_log_u(l4_cap_idx_t cap, const char *name, int on_off,
                         l4_utcb_t *utcb) L4_NOTHROW
{
  unsigned i;
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_SWITCH_LOG_OP;
  l4_utcb_mr_u(utcb)->mr[1] = on_off;
  i = __strcpy_maxlen((char *)&l4_utcb_mr_u(utcb)->mr[2], name, 32);
  i = l4_bytes_to_mwords(i);
  return l4_invoke_debugger(cap, l4_msgtag(0, 2 + i, 0, 0), utcb);
}
 
L4_INLINE l4_msgtag_t
l4_debugger_get_object_name_u(l4_cap_idx_t cap, unsigned id,
                              char *name, unsigned size,
                              l4_utcb_t *utcb) L4_NOTHROW
{
  l4_msgtag_t t;
  l4_utcb_mr_u(utcb)->mr[0] = L4_DEBUGGER_NAME_GET_OP;
  l4_utcb_mr_u(utcb)->mr[1] = id;
  t = l4_invoke_debugger(cap, l4_msgtag(0, 2, 0, 0), utcb);
  __strcpy_maxlen(name, (char const *)&l4_utcb_mr_u(utcb)->mr[0], size);
  return t;
}
 
 
L4_INLINE l4_msgtag_t
l4_debugger_set_object_name(l4_cap_idx_t cap,
                            const char *name) L4_NOTHROW
{
  return l4_debugger_set_object_name_u(cap, name, l4_utcb());
}
 
L4_INLINE unsigned long
l4_debugger_global_id(l4_cap_idx_t cap) L4_NOTHROW
{
  return l4_debugger_global_id_u(cap, l4_utcb());
}
 
L4_INLINE unsigned long
l4_debugger_kobj_to_id(l4_cap_idx_t cap, l4_addr_t kobjp) L4_NOTHROW
{
  return l4_debugger_kobj_to_id_u(cap, kobjp, l4_utcb());
}
 
L4_INLINE long
l4_debugger_query_log_typeid(l4_cap_idx_t cap, const char *name,
                             unsigned idx) L4_NOTHROW
{
  return l4_debugger_query_log_typeid_u(cap, name, idx, l4_utcb());
}
 
L4_INLINE long
l4_debugger_query_log_name(l4_cap_idx_t cap, unsigned idx,
                           char *name, unsigned namelen,
                           char *shortname, unsigned shortnamelen) L4_NOTHROW
{
  return l4_debugger_query_log_name_u(cap, idx, name, namelen,
                                      shortname, shortnamelen, l4_utcb());
}
 
L4_INLINE l4_msgtag_t
l4_debugger_switch_log(l4_cap_idx_t cap, const char *name,
                       int on_off) L4_NOTHROW
{
  return l4_debugger_switch_log_u(cap, name, on_off, l4_utcb());
}
 
L4_INLINE l4_msgtag_t
l4_debugger_get_object_name(l4_cap_idx_t cap, unsigned id,
                            char *name, unsigned size) L4_NOTHROW
{
  return l4_debugger_get_object_name_u(cap, id, name, size, l4_utcb());
}